Cruising range calculation method, device, electric vehicle and computer storage medium

Abstract

The present invention relates to a method, device, electric vehicle, and computer storage medium for calculating cruising range, and belongs to the field of battery management technology. The cruising range calculation method includes: obtaining a first estimated energy consumption and actual energy consumption of the vehicle in the previous unit mileage; obtaining the operating status of the on-board energy consumption system in the previous unit mileage, and calculating the energy consumption impact factor of the vehicle in the operating state of the on-board energy consumption system based on the estimated energy consumption and the actual energy consumption; obtaining the remaining energy of the on-board power battery and the second estimated energy consumption of the vehicle per unit mile on the subsequent driving road, and calculating the cruising range of the vehicle in the operating state of the on-board energy consumption system based on the remaining energy, the second estimated energy consumption, and the energy consumption impact factor. In calculating the cruising range of the vehicle, the present invention fully considers the impact of the operating status of the on-board energy consumption system and the vehicle's driving road on the vehicle's actual energy consumption, thereby ensuring the accuracy of the cruising range calculation.

Description

Technical Field

[0001] The present invention relates to the technical field of battery management, and in particular to a method and device for calculating a cruising range, an electric vehicle, and a computer storage medium. Background Art

[0002] With the continuous development of battery technology, electric vehicles have become a commonly used vehicle, and the battery life of electric vehicles has always been a concern for users.

[0003] In existing battery management technologies, the calculation of commercial vehicle battery range is based on the vehicle's historical driving data to calculate the vehicle's energy consumption per unit mileage, and the vehicle's remaining power is used to calculate the vehicle's range. This does not consider the impact of the commercial vehicle's onboard energy consumption system on the vehicle's actual energy consumption, and does not correct the energy consumption based on actual road conditions, resulting in inaccurate range calculations.

[0004] This shows that the existing technology has a technical problem of inaccurate calculation of vehicle cruising range. Summary of the Invention

[0005] In view of this, it is necessary to provide a range calculation method, device, electric vehicle and computer storage medium to solve the technical problem of inaccurate range calculation in the existing technology for calculating vehicle range.

[0006] In order to solve the above problems, the present invention provides a method for calculating the cruising range, which includes:

[0007] Obtain the first estimated energy consumption and actual energy consumption of the vehicle in the last unit mileage;

[0008] Obtaining the operating status of the vehicle-mounted energy consumption system in the last unit mileage, and calculating the energy consumption impact factor of the vehicle-mounted energy consumption system in the operating state in combination with the estimated energy consumption and the actual energy consumption;

[0009] Obtain the remaining energy of the on-board power battery and the second estimated energy consumption per unit mile of the vehicle on the subsequent driving road, and calculate the vehicle's cruising range in the operating state based on the on-board energy consumption system based on the remaining energy, the second estimated energy consumption and the energy consumption influencing factor.

[0010] In one possible implementation, obtaining the first estimated energy consumption and actual energy consumption of the vehicle for the last unit mileage includes:

[0011] Obtaining first road condition information for the previous unit mileage, and determining an average energy consumption per unit mileage of the vehicle under the first road condition information stored in the big data platform as a first estimated energy consumption;

[0012] Obtain the battery voltage, full charge capacity, and the difference in percentage of remaining power of the power battery before and after the vehicle travels the last unit mile of the vehicle's power battery; and use the product of the battery voltage, full charge capacity, and the difference in percentage of remaining power of the power battery as the actual energy consumption.

[0013] In one possible implementation, obtaining the operating status of the vehicle-mounted energy consumption system in the previous unit mileage, and calculating the energy consumption impact factor of the vehicle in the operating state of the vehicle-mounted energy consumption system in combination with the estimated energy consumption and the actual energy consumption, includes:

[0014] When the vehicle-mounted energy consumption system is in an on-state during the last unit mileage, the ratio of the actual energy consumption to the estimated energy consumption is used as a first energy consumption factor of the vehicle when the vehicle-mounted energy consumption system is in the on-state;

[0015] When the vehicle-mounted energy consumption system is in an off state during the last unit mileage, the ratio of the actual energy consumption to the estimated energy consumption is used as a second energy consumption factor of the vehicle when the vehicle-mounted energy consumption system is in an off state.

[0016] In one possible implementation, obtaining the remaining energy of the vehicle's power battery and the second estimated energy consumption per unit mileage of the vehicle on a subsequent driving route includes:

[0017] Obtaining a remaining power percentage of the vehicle-mounted power battery, and taking the product of the remaining power percentage, the full charge capacity, and the battery voltage as the remaining energy of the vehicle-mounted power battery;

[0018] Obtain second road condition information for the subsequent road traveled by the vehicle, and determine the average energy consumption per unit mileage of the vehicle under the second road condition information stored in the big data platform as the second estimated energy consumption.

[0019] In one possible implementation, the calculating, by the vehicle energy consumption system, the cruising range of the vehicle in the operating state based on the remaining energy, the second estimated energy consumption, and the energy consumption influencing factor includes:

[0020] When the on-board energy consumption system is in an on-state, calculating a first cruising range of the vehicle with the on-board energy consumption system in the on-state based on the remaining energy, the second estimated energy consumption, and the first energy consumption influencing factor;

[0021] When the on-board energy consumption system is in an off state, a second cruising range of the vehicle when the on-board energy consumption system is in an off state is calculated based on the remaining energy, the second estimated energy consumption and the second energy consumption influencing factor.

[0022] In a possible implementation, the vehicle energy consumption calculation system, after calculating the cruising range of the vehicle in the operating state, includes:

[0023] When the cruising range is less than a first cruising range threshold, a charging reminder is issued.

[0024] In a possible implementation, the vehicle energy consumption calculation system, after calculating the cruising range of the vehicle in the operating state, includes:

[0025] When the cruising range is less than a second cruising range threshold, a prompt to shut down the vehicle energy consumption system is issued; wherein the second cruising range threshold is less than the first cruising range threshold.

[0026] The present invention also provides a cruising range calculation device, which includes:

[0027] An energy consumption acquisition module is used to obtain the first estimated energy consumption and actual energy consumption of the vehicle in the last unit mileage;

[0028] An energy consumption impact factor calculation module is used to obtain the operating status of the vehicle energy consumption system in the previous unit mileage, and calculate the energy consumption impact factor of the vehicle in the operating state of the vehicle energy consumption system based on the estimated energy consumption and the actual energy consumption;

[0029] The cruising range calculation module is used to obtain the remaining energy of the vehicle's power battery and the second estimated energy consumption of the vehicle on the subsequent driving road, and calculate the cruising range of the vehicle in the said operating state based on the said remaining energy, the second estimated energy consumption and the said energy consumption influencing factor.

[0030] The present invention also provides an electric vehicle, which includes a memory and a processor, wherein:

[0031] The memory is used to store programs;

[0032] The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the cruising range calculation method described in any of the above embodiments.

[0033] The present invention also provides a computer-readable storage medium for storing computer-readable programs or instructions, which, when executed by a processor, can implement the steps in the range calculation method described in any of the above embodiments.

[0034] The beneficial effects of the present invention are as follows: the cruising range calculation method provided by the present invention calculates the vehicle's energy consumption impact factor based on the first estimated energy consumption and actual energy consumption of the vehicle in the previous unit mileage, combined with the operating status of the on-board energy consumption system in the previous unit mileage, and calculates the vehicle's cruising range based on the estimated energy consumption of the vehicle's subsequent driving road, the remaining energy of the power battery and the energy consumption factor. In the calculation of the vehicle's cruising range, the operating status of the on-board energy consumption system and the impact of the vehicle's driving road on the vehicle's actual energy consumption are fully considered to ensure the accuracy of the cruising range calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0036] FIG1 is a schematic diagram of a flow chart of a method for calculating a cruising range according to an embodiment of the present invention;

[0037] Figure 2 for Figure 1 A method flow chart of an embodiment of S101;

[0038] Figure 3 for Figure 1 A method flow chart of an embodiment of S102;

[0039] Figure 4 A schematic flow chart of a second method for obtaining estimated energy consumption provided by an embodiment of the present invention;

[0040] Figure 5 for Figure 1 A method flow chart of an embodiment of S103

[0041] Figure 6 A schematic structural diagram of a cruising range calculation device provided by an embodiment of the present invention;

[0042] Figure 7 A schematic structural diagram of an electric vehicle provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0044] In the description of the embodiments of the present invention, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0045] The terms "first," "second," and so on, used in the embodiments of the present invention are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, technical features designated as "first" or "second" may explicitly or implicitly include at least one such feature.

[0046] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] A specific embodiment of the present invention, as Figure 1 As shown, a method for calculating the cruising range is disclosed, including:

[0048] S101, obtaining a first estimated energy consumption and actual energy consumption of the vehicle for the last unit mileage;

[0049] S102, obtaining the operating status of the vehicle energy consumption system in the previous unit mileage, and calculating the energy consumption impact factor of the vehicle in the operating state of the vehicle energy consumption system by combining the estimated energy consumption and the actual energy consumption;

[0050] S103, obtaining the remaining energy of the vehicle's power battery and the second estimated energy consumption per unit mileage of the vehicle on the subsequent driving road, and calculating the vehicle's cruising range when the vehicle's energy consumption system is in operation based on the remaining energy, the second estimated energy consumption and the energy consumption influencing factor.

[0051] In an embodiment of the present invention, the last unit mileage refers to the unit mileage closest to the current position of the vehicle during driving. The unit mileage can be pre-set or determined based on the historical energy consumption data of the vehicle, such as one kilometer, two kilometers, five kilometers, etc. In order to minimize the impact of road factors on the accuracy of the cruising range calculation results, the energy consumption data of the last unit mileage closest to the current position of the vehicle is used as a reference.

[0052] In an embodiment of the present invention, the first estimated energy consumption refers to the predicted value of the energy required for the vehicle to travel one unit mileage. The first estimated energy consumption can be obtained based on preliminary tests or obtained from the vehicle's historical driving data obtained through a big data platform. The actual energy consumption refers to the actual energy consumption value of the vehicle for traveling one unit mileage.

[0053] In an embodiment of the present invention, in order to further ensure the accuracy of the cruising range calculation results, it is necessary to calculate the vehicle's energy consumption impact factor in combination with the operating status of the on-board energy consumption system. The on-board energy consumption system refers to other power-consuming systems on the vehicle except the conventional power system, including but not limited to commercial vehicle body systems, air-conditioning systems, etc. The operating status of the on-board energy consumption system of the vehicle in the last unit mileage is obtained, and based on the first estimated energy consumption and actual energy consumption in the aforementioned embodiment, the energy consumption impact factor of the vehicle when the on-board energy consumption system is in different states is calculated, wherein the energy consumption impact factor is used to represent the relationship between the first estimated energy consumption and the actual energy consumption, and is used to eliminate the influence of the operating status of the on-board energy consumption system and the road conditions on the road on which the vehicle is traveling on the accuracy of the cruising range calculation results.

[0054] In this embodiment of the present invention, the subsequent travel route refers to the route the vehicle will travel starting from its current location. For each unit mileage of the subsequent travel route, a second estimated energy consumption is associated with the vehicle. The second estimated energy consumption is obtained in a manner similar to the first estimated energy consumption and will not be further described here. Furthermore, based on the remaining energy in the vehicle's power battery, the second estimated energy consumption, and the energy consumption influencing factors of the vehicle's energy consumption system under different operating states, the vehicle's range can be calculated for each operating state of the vehicle's energy consumption system.

[0055] The cruising range calculation method provided by the present invention calculates the vehicle's energy consumption impact factor based on the first estimated energy consumption and actual energy consumption of the vehicle in the previous unit mileage, combined with the operating status of the on-board energy consumption system in the previous unit mileage, and calculates the vehicle's cruising range based on the estimated energy consumption of the vehicle's subsequent driving road, the remaining energy of the power battery and the energy consumption factor. In the calculation of the vehicle's cruising range, the operating status of the on-board energy consumption system and the impact of the vehicle's driving road on the vehicle are fully considered.

[0056] Optional, such as Figure 2 As shown, the first estimated energy consumption and actual energy consumption of the vehicle in the last unit mileage are obtained, including:

[0057] S201, obtaining first road condition information for a previous unit mileage, and determining an average energy consumption per unit mileage of a vehicle under the first road condition information stored in a big data platform as a first estimated energy consumption;

[0058] S202, obtaining the battery voltage, full charge capacity, and the difference in percentage of remaining power of the vehicle's power battery before and after the vehicle travels a unit mileage; and taking the product of the battery voltage, full charge capacity, and the difference in percentage of remaining power of the power battery as actual energy consumption.

[0059] In an embodiment of the present invention, the first road condition information refers to the road condition information within the last unit mileage, wherein the road condition information includes uphill, downhill, turning, U-turn, etc. Based on the road condition information, it is possible to combine the high-precision map to obtain the average energy consumption of each vehicle in the road section of the last unit mileage on the big data platform, and use the average energy consumption as the first estimated energy consumption.

[0060] In an embodiment of the present invention, the voltage of the vehicle power battery is obtained U , full charge capacity C And the difference in percentage of remaining power in the power battery before and after the vehicle travels a unit mileage , use formula (1) to calculate the actual energy consumption of the vehicle P :

[0061] (1)

[0062] in, l The unit is mileage.

[0063] Optional, such as Figure 3 As shown, the operating status of the vehicle energy consumption system in the previous unit mileage is obtained, and the energy consumption influencing factors of the vehicle in the operating state of the vehicle energy consumption system are calculated by combining the estimated energy consumption and the actual energy consumption, including:

[0064] S301, when the vehicle energy consumption system is in an on-state during the last unit mileage, using a ratio of actual energy consumption to estimated energy consumption as a first energy consumption factor of the vehicle when the vehicle energy consumption system is in the on-state;

[0065] S302 , when the vehicle-mounted energy consumption system is in an off state during the last unit mileage, the ratio of the actual energy consumption to the estimated energy consumption is used as a second energy consumption factor of the vehicle when the vehicle-mounted energy consumption system is in the off state.

[0066] In the embodiment of the present invention, since different operating states of the vehicle energy consumption system will lead to different actual energy consumption of the vehicle, it is necessary to consider the impact of the operating state of the vehicle energy consumption system on the energy consumption factor when calculating the energy consumption factor of the vehicle. For example, when the vehicle energy consumption system is turned on in the last unit mileage, its estimated energy consumption is , the actual energy consumption is calculated as , the first energy consumption factor can be calculated by formula (2) :

[0067] (2)

[0068] Optionally, when the vehicle energy consumption system is off in the last unit mileage, the estimated energy consumption is , the actual energy consumption is calculated as , the first energy consumption factor can be calculated by formula (3) :

[0069] (3)

[0070] The embodiment of the present invention calculates the energy consumption factor of the vehicle when the on-board energy consumption system is turned on and off based on the operating status of the on-board energy consumption system, which can effectively prevent the operating status of the on-board energy consumption system from affecting the accuracy of the cruising range calculation result.

[0071] Further, such as Figure 4 As shown, obtaining the remaining energy of the vehicle's power battery and the second estimated energy consumption per unit mileage of the vehicle in the subsequent driving road includes:

[0072] S401, obtaining the remaining power percentage of the vehicle power battery, and taking the product of the remaining power percentage, the full charge capacity, and the battery voltage as the remaining energy of the vehicle power battery;

[0073] S402, obtaining second road condition information of the subsequent road on which the vehicle will travel, and determining the average energy consumption per unit mileage of the vehicle under the second road condition information stored in the big data platform as the second estimated energy consumption.

[0074] In an embodiment of the present invention, the remaining energy of the vehicle power battery can be calculated using formula (4):

[0075] (4)

[0076] in, is the remaining energy of the vehicle's power battery, U is the battery voltage, C For full charge capacity, SOC The remaining battery percentage.

[0077] In an embodiment of the present invention, the second estimated energy consumption per unit mileage of the vehicle in the subsequent driving road can be determined in a manner similar to the first estimated energy consumption, by using statistics from a big data platform on the average energy consumption per unit mileage of various vehicles in the subsequent driving road.

[0078] The embodiment of the present invention facilitates accurate calculation of subsequent cruising range by obtaining the remaining energy of the vehicle and the second estimated energy consumption.

[0079] Further, such as Figure 5As shown, the vehicle range of the vehicle in the running state of the vehicle energy consumption system is calculated based on the remaining energy, the second estimated energy consumption and the energy consumption influencing factor, including:

[0080] S501, when the vehicle energy consumption system is in an on-state, calculating a first cruising range of the vehicle when the vehicle energy consumption system is in an on-state based on the remaining energy, the second estimated energy consumption, and the first energy consumption influencing factor;

[0081] S502 , when the vehicle-mounted energy consumption system is in an off state, calculating a second cruising range of the vehicle when the vehicle-mounted energy consumption system is in an off state based on the remaining energy, the second estimated energy consumption, and the second energy consumption influencing factor.

[0082] In the embodiment of the present invention, the calculation of the cruising range is different for different operating states of the vehicle-mounted system. For example, when the vehicle-mounted energy consumption system is in the on-state, the first energy consumption factor should be used to eliminate the impact of the vehicle-mounted energy consumption system on the actual energy consumption of the vehicle. Formulas (5) and (6) are used to calculate the first cruising range of the vehicle:

[0083] (5)

[0084] (6)

[0085] in, The remaining energy of the vehicle's power battery, is the first energy impact factor, l is the unit mileage, x is the number of segments per unit mileage, is the second estimated energy consumption per unit mileage, is the first cruising range. Based on formula (5), the number of unit mileage segments that the vehicle can travel with the remaining energy can be calculated, and the first cruising range of the vehicle can be calculated using formula (6).

[0086] Similarly, when the onboard energy consumption system is in the off state, the second energy consumption factor should be used to eliminate the impact of the onboard energy consumption system on the actual energy consumption of the vehicle. Formulas (7) and (8) are used to calculate the second cruising range of the vehicle:

[0087] (7)

[0088] (8)

[0089] in, The remaining energy of the vehicle's power battery, is the second energy impact factor, l is the unit mileage, y is the number of segments per unit mileage, is the second estimated energy consumption per unit mileage, is the second cruising range. Based on formula (7), the number of unit mileage segments that the vehicle can travel with the remaining energy can be calculated, and the second cruising range of the vehicle can be calculated using formula (8).

[0090] The embodiment of the present invention adjusts the calculation method of the cruising range based on the operating status of the vehicle energy consumption system, fully considering the impact of the operating status of the vehicle energy consumption system on the accuracy of the cruising range calculation result, and ensuring the accuracy of the cruising range prediction.

[0091] Optionally, after calculating the vehicle's cruising range when the vehicle's onboard energy consumption system is in operation, the following steps may be performed:

[0092] When the cruising range is less than the first cruising range threshold, a charging reminder is issued.

[0093] In an embodiment of the present invention, the calculated cruising range can be compared with a pre-set first cruising range threshold. When the calculated cruising range is less than the first cruising range threshold, it means that the vehicle's drivable distance is relatively short, and a charging reminder is issued to remind the driver to find a charging pile for charging in time to prevent the vehicle from powering off and shutting down.

[0094] Furthermore, after calculating the vehicle's cruising range when the vehicle's onboard energy consumption system is in operation, it includes:

[0095] When the cruising range is less than a second cruising range threshold, a prompt is issued to shut down the vehicle energy consumption system; wherein the second cruising range threshold is less than the first cruising range threshold.

[0096] In an embodiment of the present invention, a second cruising range threshold may also be provided, wherein the second cruising range threshold should be smaller than the first cruising range threshold. When the calculated cruising range is smaller than the second cruising range threshold, it indicates that the remaining energy of the vehicle's power battery is too low, and the vehicle needs to be powered to find a charging pile. At this time, a prompt to shut down the on-board energy consumption system may be issued to prompt the driver to shut down the on-board energy consumption system and provide more power for the vehicle, thereby ensuring that the vehicle can travel to the charging pile for charging and preventing the vehicle from shutting down due to lack of power.

[0097] Furthermore, when the driver confirms that he needs to find a charging station to charge the vehicle, he can automatically combine the calculated vehicle range with high-precision map information to find a rechargeable charging station within the range of the range and navigate.

[0098] When the calculated cruising range is too low, the embodiment of the present invention issues a charging reminder or shuts down the vehicle energy consumption system to remind the driver to charge the vehicle and prevent the vehicle from shutting down due to power shortage on the way.

[0099] In order to better implement the cruising range calculation method in the embodiment of the present invention, based on the cruising range calculation method, correspondingly, Figure 6 As shown, an embodiment of the present invention further provides a cruising range calculation device, and the cruising range calculation device 600 includes:

[0100] The energy consumption acquisition module 601 is used to obtain the first estimated energy consumption and actual energy consumption of the vehicle in the last unit mileage;

[0101] The energy consumption impact factor calculation module 602 is used to obtain the operating status of the vehicle energy consumption system in the previous unit mileage, and calculate the energy consumption impact factor of the vehicle in the operating state of the vehicle energy consumption system in combination with the estimated energy consumption and the actual energy consumption;

[0102] The cruising range calculation module 603 is used to obtain the remaining energy of the vehicle's power battery and the second estimated energy consumption of the vehicle on the subsequent driving road, and calculate the vehicle's cruising range when the vehicle's energy consumption system is in operation based on the remaining energy, the second estimated energy consumption and the energy consumption influencing factor.

[0103] The cruising range calculation device 600 provided in the above embodiment can implement the technical solution described in the above embodiment of the cruising range calculation method. The specific implementation principles of the above modules or units can be found in the corresponding contents in the above embodiment of the cruising range calculation method, which will not be repeated here.

[0104] The cruising range calculation device provided by the present invention calculates the vehicle's energy consumption impact factor based on the first estimated energy consumption and actual energy consumption of the vehicle in the previous unit mileage, combined with the operating status of the on-board energy consumption system in the previous unit mileage, and calculates the vehicle's cruising range based on the estimated energy consumption of the vehicle's subsequent driving road, the remaining energy of the power battery, and the energy consumption factor. In the calculation of the vehicle's cruising range, the operating status of the on-board energy consumption system and the impact of the vehicle's driving road on the vehicle's actual energy consumption are fully considered to ensure the accuracy of the cruising range calculation.

[0105] like Figure 7 As shown, the present invention also provides an electric vehicle 700. The electric vehicle 700 includes a processor 701, a memory 702 and a display 703. Figure 7 Only some of the components of the electric vehicle 700 are shown, but it should be understood that implementation of all of the shown components is not a requirement, and more or fewer components may alternatively be implemented.

[0106] In some embodiments, the processor 701 can be a central processing unit (CPU), a microprocessor, or other data processing chip, used to run program codes or process data stored in the memory 702, such as the range calculation method of the present invention.

[0107] In some embodiments, the processor 701 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 701 may be local or remote. In some embodiments, the processor 701 may be implemented on a cloud platform. In some embodiments, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, multiple clouds, or any combination thereof.

[0108] In some embodiments, the memory 702 may be an internal storage unit of the electric vehicle 700, such as a hard drive or memory of the electric vehicle 700. In other embodiments, the memory 702 may be an external storage device of the electric vehicle 700, such as a plug-in hard drive, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the electric vehicle 700.

[0109] Furthermore, the memory 702 may include both an internal storage unit of the electric vehicle 700 and an external storage device. The memory 702 is used to store application software installed in the electric vehicle 700 and various data.

[0110] In some embodiments, display 703 can be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. Display 703 is used to display information about electric vehicle 700 and to present a visual user interface. Components 701-703 of electric vehicle 700 communicate with each other via a system bus.

[0111] In some embodiments, when the processor 701 executes the range calculation program in the memory 702, the following steps may be implemented:

[0112] Obtain the first estimated energy consumption and actual energy consumption of the vehicle in the last unit mileage;

[0113] Obtain the operating status of the vehicle's energy consumption system during the previous unit mileage, and calculate the energy consumption impact factor of the vehicle under the operating status of the vehicle's energy consumption system by combining the estimated energy consumption and the actual energy consumption;

[0114] Obtain the remaining energy of the vehicle's power battery and the second estimated energy consumption per unit mileage of the vehicle on the subsequent driving road, and calculate the vehicle's cruising range when the vehicle's energy consumption system is in operation based on the remaining energy, the second estimated energy consumption and the energy consumption influencing factor.

[0115] It should be understood that, when the processor 701 executes the range calculation program in the memory 702 , in addition to the above functions, it can also implement other functions. For details, please refer to the description of the corresponding method embodiment above.

[0116] Accordingly, an embodiment of the present invention also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, the steps or functions in the range calculation method provided in the above-mentioned method embodiments can be implemented.

[0117] Those skilled in the art will appreciate that all or part of the process steps of the above-described embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, such as a magnetic disk, an optical disk, a read-only memory, or a random access memory.

[0118] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A method for calculating cruising range, characterized in that: include: Obtain the first estimated energy consumption and actual energy consumption of the vehicle in the last unit mileage; Obtaining the operating status of the vehicle-mounted energy consumption system in the last unit mileage, and calculating the energy consumption impact factor of the vehicle in the operating state of the vehicle-mounted energy consumption system in combination with the estimated energy consumption and the actual energy consumption; Obtaining the remaining energy of the on-board power battery and a second estimated energy consumption per unit mile of the vehicle on a subsequent driving route, and calculating the cruising range of the vehicle in the operating state by the on-board energy consumption system based on the remaining energy, the second estimated energy consumption, and the energy consumption influencing factor; The obtaining of the operating state of the vehicle-mounted energy consumption system in the previous unit mileage, and calculating the energy consumption impact factor of the vehicle in the operating state of the vehicle-mounted energy consumption system in combination with the estimated energy consumption and the actual energy consumption, includes: When the vehicle-mounted energy consumption system is in an on-state during the last unit mileage, the ratio of the actual energy consumption to the estimated energy consumption is used as a first energy consumption influencing factor of the vehicle when the vehicle-mounted energy consumption system is in the on-state; When the on-board energy consumption system is in an off state during the last unit mileage, the ratio of the actual energy consumption to the estimated energy consumption is used as a second energy consumption influencing factor of the vehicle when the on-board energy consumption system is in an off state.

2. The method for calculating the cruising range according to claim 1, wherein: The obtaining of the first estimated energy consumption and actual energy consumption of the vehicle for the last unit mileage includes: Obtaining first road condition information for the previous unit mileage, and determining an average energy consumption per unit mileage of the vehicle under the first road condition information stored in the big data platform as a first estimated energy consumption; Obtain the battery voltage, full charge capacity, and the difference in percentage of remaining power of the power battery before and after the vehicle travels the last unit mile of the vehicle's power battery; and use the product of the battery voltage, full charge capacity, and the difference in percentage of remaining power of the power battery as the actual energy consumption.

3. The cruising range calculation method according to claim 2, characterized in that: The obtaining of the remaining energy of the vehicle's power battery and the second estimated energy consumption per unit mileage of the vehicle on the subsequent driving road includes: Obtaining a remaining power percentage of the vehicle-mounted power battery, and taking the product of the remaining power percentage, the full charge capacity, and the battery voltage as the remaining energy of the vehicle-mounted power battery; Obtain second road condition information for the subsequent road traveled by the vehicle, and determine the average energy consumption per unit mileage of the vehicle under the second road condition information stored in the big data platform as the second estimated energy consumption.

4. The method for calculating the cruising range according to claim 3, wherein: The calculating, by the vehicle energy consumption system, the cruising range of the vehicle in the operating state based on the remaining energy, the second estimated energy consumption, and the energy consumption influencing factor includes: When the on-board energy consumption system is in an on-state, calculating a first cruising range of the vehicle with the on-board energy consumption system in the on-state based on the remaining energy, the second estimated energy consumption, and the first energy consumption influencing factor; When the on-board energy consumption system is in an off state, a second cruising range of the vehicle when the on-board energy consumption system is in an off state is calculated based on the remaining energy, the second estimated energy consumption and the second energy consumption influencing factor.

5. The cruising range calculation method according to claim 1, characterized in that: After calculating the cruising range of the vehicle in the operating state by the vehicle-mounted energy consumption system, the method includes: When the cruising range is less than a first cruising range threshold, a charging reminder is issued.

6. The method for calculating the cruising range according to claim 5, wherein: The vehicle energy consumption calculation system includes: When the cruising range is less than a second cruising range threshold, a prompt to shut down the vehicle energy consumption system is issued; wherein the second cruising range threshold is less than the first cruising range threshold.

7. A cruising range calculation device, characterized in that: include: An energy consumption acquisition module is used to obtain the first estimated energy consumption and actual energy consumption of the vehicle in the last unit mileage; An energy consumption impact factor calculation module is used to obtain the operating status of the vehicle-mounted energy consumption system in the previous unit mileage, and calculate the energy consumption impact factor of the vehicle in the operating state of the vehicle-mounted energy consumption system in combination with the estimated energy consumption and the actual energy consumption; a cruising range calculation module, configured to obtain the remaining energy of the vehicle's power battery and a second estimated energy consumption of the vehicle on a subsequent driving route, and calculate the cruising range of the vehicle under the operating state of the vehicle's energy consumption system based on the remaining energy, the second estimated energy consumption, and the energy consumption influencing factor; The obtaining of the operating state of the vehicle-mounted energy consumption system in the previous unit mileage, and calculating the energy consumption impact factor of the vehicle in the operating state of the vehicle-mounted energy consumption system in combination with the estimated energy consumption and the actual energy consumption, includes: When the vehicle-mounted energy consumption system is in an on-state during the last unit mileage, the ratio of the actual energy consumption to the estimated energy consumption is used as a first energy consumption influencing factor of the vehicle when the vehicle-mounted energy consumption system is in the on-state; When the on-board energy consumption system is in an off state during the last unit mileage, the ratio of the actual energy consumption to the estimated energy consumption is used as a second energy consumption influencing factor of the vehicle when the on-board energy consumption system is in an off state.

8. An electric vehicle, characterized in that: comprising a memory and a processor, wherein, The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the cruising range calculation method described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that Used to store computer-readable programs or instructions, which, when executed by a processor, can implement the steps in the range calculation method described in any one of claims 1 to 6 above.

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